<template>
  <div>
    <div class="flex">
      <div
        :class="[disabled ? 'user-info-head-disabled' : 'user-info-head']"
        @click="disabled ? '' : editCropper()"
      >
        <img
          v-bind:src="avatar ? avatar : require('@/assets/images/head_img.png')"
          class="img-circle img-lg"
        />
      </div>
      <div
        style="
          margin-left: 20px;
          height: 120px;
          font-size: 12px;
          font-family: PingFangSC-Regular, PingFang SC;
          font-weight: 400;
          color: #a3a3a3;
          line-height: 120px;
        "
      >
        建议图片比例为1:1,支持JPG、PNG格式,图片小于5M
      </div>
    </div>

    <el-dialog
      :title="title"
      :close-on-click-modal="false"
      :close-on-press-escape="false"
      :visible.sync="open"
      width="800px"
      append-to-body
      @opened="modalOpened"
      @close="closeDialog"
    >
      <el-row>
        <el-col :xs="24" :md="12" :style="{ height: '350px' }">
          <vue-cropper
            ref="cropper"
            :img="options.img"
            :info="true"
            :autoCrop="options.autoCrop"
            :autoCropWidth="options.autoCropWidth"
            :autoCropHeight="options.autoCropHeight"
            :fixedBox="options.fixedBox"
            :outputType="options.outputType"
            @realTime="realTime"
            v-if="visible"
          />
        </el-col>
        <el-col :xs="24" :md="12" :style="{ height: '350px' }">
          <div class="avatar-upload-preview">
            <img :src="previews.url" :style="previews.img" />
          </div>
        </el-col>
      </el-row>
      <br />
      <el-row>
        <el-col :lg="2" :sm="3" :xs="3">
          <el-upload
            accept="image/*"
            action="#"
            :http-request="requestUpload"
            :show-file-list="false"
            :before-upload="beforeUpload"
          >
            <el-button size="small">
              选择
              <i class="el-icon-upload el-icon--right"></i>
            </el-button>
          </el-upload>
        </el-col>
        <el-col :lg="{ span: 1, offset: 2 }" :sm="2" :xs="2">
          <el-button
            icon="el-icon-plus"
            size="small"
            @click="changeScale(1)"
          ></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :sm="2" :xs="2">
          <el-button
            icon="el-icon-minus"
            size="small"
            @click="changeScale(-1)"
          ></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :sm="2" :xs="2">
          <el-button
            icon="el-icon-refresh-left"
            size="small"
            @click="rotateLeft()"
          ></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :sm="2" :xs="2">
          <el-button
            icon="el-icon-refresh-right"
            size="small"
            @click="rotateRight()"
          ></el-button>
        </el-col>
        <el-col :lg="{ span: 2, offset: 6 }" :sm="2" :xs="2">
          <el-button type="primary" size="small" @click="uploadImg()"
            >提 交</el-button
          >
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script>
import store from "@/store";
import { VueCropper } from "vue-cropper";
import { uploadAvatar } from "@/api/system/user";
import { debounce } from "@/utils";
import { uploadOSS } from "@/api/upload";
export default {
  components: { VueCropper },
  props: {
    avatar: {
      type: String,
    },
    disabled: {
      type: Boolean,
      default: false,
    },
  },
  data() {
    return {
      // 是否显示弹出层
      open: false,
      // 是否显示cropper
      visible: false,
      // 弹出层标题
      title: "修改头像",
      options: {
        img: this.avatar, //裁剪图片的地址
        autoCrop: true, // 是否默认生成截图框
        autoCropWidth: 200, // 默认生成截图框宽度
        autoCropHeight: 200, // 默认生成截图框高度
        fixedBox: true, // 固定截图框大小 不允许改变
        outputType: "png", // 默认生成截图为PNG格式
      },
      previews: {},
      resizeHandler: null,
      file: null,
    };
  },
  watch: {
    avatar(newAvatar) {
      console.log(newAvatar);
      this.options.img = newAvatar; // 当 avatar 发生变化时更新 options.img
    },
  },
  methods: {
    // 编辑头像
    editCropper() {
      console.log("编辑头像", this.avatar);

      this.open = true;
      this.options.img = this.avatar; // 直接在打开弹出层时赋值头像
      this.refresh();
    },
    // 打开弹出层结束时的回调
    modalOpened() {
      this.visible = true;
      if (!this.resizeHandler) {
        this.resizeHandler = debounce(() => {
          this.refresh();
        }, 100);
      }
      window.addEventListener("resize", this.resizeHandler);
    },
    // 刷新组件
    refresh() {
      this.$refs.cropper.refresh();
    },
    // 覆盖默认的上传行为
    requestUpload() {},
    // 向左旋转
    rotateLeft() {
      this.$refs.cropper.rotateLeft();
    },
    // 向右旋转
    rotateRight() {
      this.$refs.cropper.rotateRight();
    },
    // 图片缩放
    changeScale(num) {
      num = num || 1;
      this.$refs.cropper.changeScale(num);
    },
    // 上传预处理
    beforeUpload(file) {
      this.file = file;
      console.log(file);
      if (file.type.indexOf("image/") == -1) {
        this.$modal.msgError(
          "文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。"
        );
      } else if (file.size / 1024 / 1024 > 5) {
        this.$modal.msgError("图片大小不能超过5M");
      } else {
        const reader = new FileReader();
        reader.readAsDataURL(file);
        reader.onload = () => {
          this.options.img = reader.result;
        };
      }
    },
    // 上传图片
    uploadImg() {
      this.$refs.cropper.getCropBlob((data) => {
        let file = new File([data], this.file.name, {
          type: this.file.type,
          lastModified: Date.now(),
        });
        uploadOSS(file).then((response) => {
          this.open = false;
          console.log(response, "responseresponse");
          this.options.img = response[0];

          this.$modal.msgSuccess("修改成功");
          this.$emit("refresh", response[0]);
          this.visible = false;
        });
      });
    },
    // 实时预览
    realTime(data) {
      this.previews = data;
    },
    // 关闭窗口
    closeDialog() {
      this.options.img = store.getters.avatar;
      this.visible = false;
      window.removeEventListener("resize", this.resizeHandler);
    },
  },
};
</script>
<style scoped lang="scss">
.user-info-head {
  border: 1px solid #eeeeee;
  border-radius: 50%;
  position: relative;
  display: inline-block;
  height: 120px;
}
.user-info-head-disabled {
  border: 1px solid #eeeeee;
  border-radius: 50%;
  position: relative;
  display: inline-block;
  height: 120px;
}

.user-info-head:hover:after {
  text-align: center;
  content: "+";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  color: #eee;
  background: rgba(0, 0, 0, 0.5);
  font-size: 24px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: pointer;
  line-height: 120px;
  border-radius: 50%;
}
</style>
